You are reading a single comment by @gbj_tester and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@gbj_tester
Just measured some spare 1Z1 links which are sitting on my desk, they are 3.5mm between the inner plates. That should be more than enough for any ⅛" (3.175mm) chainring. If the chainring teeth really are touching both inner plates at once, they are substantially over width.
Grab hold of the chain where it is fully engaged and see if you can wiggle it from side to side. If you can, the width is OK.
A 7Z1 is about 2.75mm between inner plates and will squeeze onto a ⅛" ring which is actually 3mm, as some are. I've just tried this on a Stronglight track ring, and it's not hard to get on, but you can definitely feel the friction as you pull the chain off the teeth. It's possible that an error has occurred and you're trying to use a 7Z1 on a track ring.
Can you tell I'm supposed to be training? Tech chat as displacement activity :-)